I used a Redding FL "S" bushing die for years, because it cost the most and looked the best of my .223 sizer dies.
Then I did a test with populations of brass dedicated to different dies.
The S die was the worst for eccentricity and case growth.
The Lee Collet neck die [cheapest and ugliest in the group] was the best, and it has been gathering dust for 5 years on my shelf.
RCBS and Forster were in the middle.
So I got to use the line from "Deliverance" when I looked in the mirror, 'You don't know nuth'n, do ya?"
The word 'forum" does not mean "not criticizing books."
"Ad hominem fallacy" is not the same as point by point criticism of books. If you bought the book, and believe it all, it may FEEL like an ad hominem attack, but you might strive to accept other points of view may exist.
Are we a nation of competing ideas, or a nation of forced conformity of thought?